Automatic woodworking sander common failure analysis and elimination?

by:Gewinn     2020-06-21
Automatic woodworking sander common fault analysis and ruled out: in the process of the running of the machine, often appear some fault, but the fault should be ruled out in time, but if mishandled, could affect the production, and increase the cost. This requires operators must be familiar with operational procedures, skilled operation, eliminate in a timely manner. Some fault when found not serious, but if not handled properly, can cause large fault, the serious influence production. The following common fault of sanding machine were analyzed. 1. Abrasive belt deviation, generally due to improper adjustment, normal abrasive belt oscillation amplitude should be 15 20 mm, the oscillating frequency of 15 - 20 times/min, swing speed moderate, put into the pose speed. If in the abnormal state, running deviation may occur for a long time. The speed of the pendulum, in particular, are prone to cause abnormal downtime. Photoelectric switch is damaged, the electromagnetic valve damage, damage of swinging cylinder. Dust, dust concentration is high, will affect the normal work of the photovoltaic cells, can also cause abrasive belt running deviation; The damaged parts should be replaced in a timely manner, in order to improve dust removal effect. 2. Ultimate failure. Limit switch located in the belt on both sides. Once the limit failure, will cause the damage of abrasive belt, friction of Mars, or even cause a fire. Therefore, we should always check whether the limit switch is reliable. 3. Abrasive belt wrinkling, once the abrasive belt wrinkling cannot reoccupy, generally there are three possible abrasive belt corrugate: the sand roll and tension roll wear, polishing, repair roller; Caused by the soft abrasive belt be affected with damp be affected with damp wrinkles, dry can processing by adopting the method of drying; The sand roller surface will not wrinkle. Should be rust rough grinding. Swing the difficulty of the abrasive belt will lead to a trend. At this point, the rollers should be rust removal or with fine sand paper burnish. 4. Abrasive belt, abrasive belt breaking is mainly due to the abrasive belt running deviation, or abrasive belt grinding blunt not change in time, or abrasive belt cutting load is too large, or in encountered in the process of abrasive belt cutting hard, or abrasive belt itself quality problems. 5. Should try to avoid abrasive belt fracture, or may cause a fire. When the current exception, should observe whether abrasive belt is dull, such as dull, it should be replaced in a timely manner. 6. Wandering into the board, sliding, rebound, conveyor roller on sanding machine adjustment requirements back pressure spring to two-thirds ( The rest) And on the conveyor roller and the thickness of the conveyor roller should be less than 1. 5 mm or 1 mm, otherwise it will cause or skid plate wandering. In severe cases, it may cause recoil, it may damage the personal safety. 7. Replace the abrasive belt and cut sand plate size changes, sanding machine cantilever loosen or tighten in the locking piece, position volatile, the general should be 0. 5 mm or less. If too large, the lock block lock cantilever, locking force difference can cause cantilever repeat precision difference, caused by sand plate size, directly affect the sanding of sanding machine precision. When the cantilever error is too large, Greater than zero. 5毫米) Shall be appropriately loosen and adjust the lock block the retaining bolt. Replace the abrasive belt at the same time, lock the clamping force of the block should be consistent. 8. When the conveyor roller intermittent rotation or not rotating or work in the empty, generally cannot observe the above situation. It can only be found in the empty, because the turbine part or all of the wear is caused by the transmission power of turbine speed. Although it does not affect the work, but other worm gear can increase the workload, shorten, thereby causing loss to the larger. Therefore, if you find this kind of situation, should be replaced immediately. 9. The main bearing abnormal vibration. : under normal circumstances, the vibration of the main bearing seat is small, the experienced operators can by touch, whether it is normal, the unconditional use instrument to measure, but can be by comparison with other bearing or by judging grinding sanding PL to judge the quality of the surface. To eat. When the abnormal vibration bearing seat, can think of for two reasons: one is the bearing damaged, as long as the bearings can be replaced, the second is the contact roller wear and running deviation, dynamic balance of the original damage, cause abnormal vibration, this kind of circumstance must dismantle sand roller maintenance. 10. Main transmission belt creep, Q, M machine, sand used in high speed
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